-- The function adds parens in context that need
-- an atomic value (e.g. function args)
-ppr_expr add_par (Type ty) = add_par (ptext (sLit "TYPE") <+> ppr ty) -- Wierd
+ppr_expr add_par (Type ty) = add_par (ptext (sLit "TYPE") <+> ppr ty) -- Wierd
+
+ppr_expr add_par (Coercion co) = add_par (ptext (sLit "CO") <+> ppr co)
ppr_expr _ (Var name) = ppr name
ppr_expr _ (Lit lit) = ppr lit
}
ppr_expr add_par (Case expr var ty [(con,args,rhs)])
+ | opt_PprCaseAsLet
+ = add_par $
+ sep [sep [ ptext (sLit "let")
+ <+> char '{'
+ <+> ppr_case_pat con args
+ <+> ptext (sLit "~")
+ <+> ppr_bndr var
+ , ptext (sLit "<-")
+ <+> ppr_expr id expr
+ , char '}'
+ <+> ptext (sLit "in")
+ ]
+ , pprCoreExpr rhs
+ ]
+
+ | otherwise
= add_par $
sep [sep [ptext (sLit "case") <+> pprCoreExpr expr,
ifPprDebug (braces (ppr ty)),
sep [ptext (sLit "of") <+> ppr_bndr var,
- char '{' <+> ppr_case_pat con args]
+ char '{' <+> ppr_case_pat con args <+> arrow]
],
pprCoreExpr rhs,
char '}'
<+> pprCoreExpr expr
<+> ifPprDebug (braces (ppr ty)),
ptext (sLit "of") <+> ppr_bndr var <+> char '{'],
- nest 2 (sep (punctuate semi (map pprCoreAlt alts))),
+ nest 2 (vcat (punctuate semi (map pprCoreAlt alts))),
char '}'
]
where
pprCoreAlt :: OutputableBndr a => (AltCon, [a] , Expr a) -> SDoc
pprCoreAlt (con, args, rhs)
- = hang (ppr_case_pat con args) 2 (pprCoreExpr rhs)
+ = hang (ppr_case_pat con args <+> arrow) 2 (pprCoreExpr rhs)
ppr_case_pat :: OutputableBndr a => AltCon -> [a] -> SDoc
ppr_case_pat (DataAlt dc) args
| isTupleTyCon tc
- = tupleParens (tupleTyConBoxity tc) (hsep (punctuate comma (map ppr_bndr args))) <+> arrow
+ = tupleParens (tupleTyConBoxity tc) (hsep (punctuate comma (map ppr_bndr args)))
where
ppr_bndr = pprBndr CaseBind
tc = dataConTyCon dc
ppr_case_pat con args
- = ppr con <+> sep (map ppr_bndr args) <+> arrow
+ = ppr con <+> sep (map ppr_bndr args)
where
ppr_bndr = pprBndr CaseBind
+
+-- | Pretty print the argument in a function application.
pprArg :: OutputableBndr a => Expr a -> SDoc
-pprArg (Type ty) = ptext (sLit "@") <+> pprParendType ty
-pprArg expr = pprParendExpr expr
+pprArg (Type ty)
+ | opt_SuppressTypeApplications = empty
+ | otherwise = ptext (sLit "@") <+> pprParendType ty
+pprArg (Coercion co) = ptext (sLit "@~") <+> pprParendCo co
+pprArg expr = pprParendExpr expr
\end{code}
Other printing bits-and-bobs used with the general @pprCoreBinding@
ppIdInfo binder (idInfo binder)
-- Lambda bound type variables are preceded by "@"
-pprCoreBinder LambdaBind bndr
- | isDeadBinder bndr
- = getPprStyle $ \ sty ->
- if debugStyle sty then
- parens (pprTypedBinder bndr)
- else
- char '_'
- | otherwise
- = parens (pprTypedBinder bndr)
-
--- Case bound things don't get a signature or a herald, unless we have debug on
-pprCoreBinder CaseBind bndr
+pprCoreBinder bind_site bndr
= getPprStyle $ \ sty ->
- if debugStyle sty then
- parens (pprTypedBinder bndr)
- else
- if isDeadBinder bndr then char '_'
- else pprUntypedBinder bndr
+ pprTypedLCBinder bind_site (debugStyle sty) bndr
pprUntypedBinder :: Var -> SDoc
pprUntypedBinder binder
| isTyVar binder = ptext (sLit "@") <+> ppr binder -- NB: don't print kind
| otherwise = pprIdBndr binder
+pprTypedLCBinder :: BindingSite -> Bool -> Var -> SDoc
+-- For lambda and case binders, show the unfolding info (usually none)
+pprTypedLCBinder bind_site debug_on var
+ | not debug_on && isDeadBinder var = char '_'
+ | not debug_on, CaseBind <- bind_site = pprUntypedBinder var -- No parens, no kind info
+ | isTyVar var = parens (pprKindedTyVarBndr var)
+ | otherwise = parens (hang (pprIdBndr var)
+ 2 (vcat [ dcolon <+> pprType (idType var), pp_unf]))
+ where
+ unf_info = unfoldingInfo (idInfo var)
+ pp_unf | hasSomeUnfolding unf_info = ptext (sLit "Unf=") <> ppr unf_info
+ | otherwise = empty
+
pprTypedBinder :: Var -> SDoc
-- Print binder with a type or kind signature (not paren'd)
pprTypedBinder binder
- | isTyVar binder = pprKindedTyVarBndr binder
- | otherwise = hang (pprIdBndr binder) 2 (dcolon <+> pprType (idType binder))
+ | isTyVar binder = pprKindedTyVarBndr binder
+ | opt_SuppressTypeSignatures = empty
+ | otherwise = hang (pprIdBndr binder) 2 (dcolon <+> pprType (idType binder))
pprKindedTyVarBndr :: TyVar -> SDoc
-- Print a type variable binder with its kind (but not if *)
pprIdBndrInfo :: IdInfo -> SDoc
pprIdBndrInfo info
+ | opt_SuppressIdInfo = empty
+ | otherwise
= megaSeqIdInfo info `seq` doc -- The seq is useful for poking on black holes
where
prag_info = inlinePragInfo info
\begin{code}
ppIdInfo :: Id -> IdInfo -> SDoc
ppIdInfo id info
+ | opt_SuppressIdInfo = empty
+ | otherwise
= showAttributes
[ (True, pp_scope <> ppr (idDetails id))
, (has_arity, ptext (sLit "Arity=") <> int arity)
instance Outputable UnfoldingSource where
ppr InlineCompulsory = ptext (sLit "Compulsory")
ppr (InlineWrapper w) = ptext (sLit "Worker=") <> ppr w
- ppr InlineRule = ptext (sLit "InlineRule")
+ ppr InlineStable = ptext (sLit "InlineStable")
ppr InlineRhs = ptext (sLit "<vanilla>")
instance Outputable Unfolding where
- ppr NoUnfolding = ptext (sLit "No unfolding")
- ppr (OtherCon cs) = ptext (sLit "OtherCon") <+> ppr cs
- ppr (DFunUnfolding con ops) = ptext (sLit "DFun") <+> ppr con
- <+> brackets (pprWithCommas pprParendExpr ops)
+ ppr NoUnfolding = ptext (sLit "No unfolding")
+ ppr (OtherCon cs) = ptext (sLit "OtherCon") <+> ppr cs
+ ppr (DFunUnfolding ar con ops) = ptext (sLit "DFun") <> parens (ptext (sLit "arity=") <> int ar)
+ <+> ppr con <+> brackets (pprWithCommas ppr ops)
ppr (CoreUnfolding { uf_src = src
, uf_tmpl=rhs, uf_is_top=top, uf_is_value=hnf
, uf_is_conlike=conlike, uf_is_cheap=cheap
, ptext (sLit "Expandable=") <> ppr exp
, ptext (sLit "Guidance=") <> ppr g ]
pp_tmpl = ptext (sLit "Tmpl=") <+> ppr rhs
- pp_rhs | isInlineRuleSource src = pp_tmpl
- | otherwise = empty
+ pp_rhs | isStableSource src = pp_tmpl
+ | otherwise = empty
-- Don't print the RHS or we get a quadratic
-- blowup in the size of the printout!
+
+instance Outputable e => Outputable (DFunArg e) where
+ ppr (DFunPolyArg e) = braces (ppr e)
+ ppr (DFunConstArg e) = ppr e
+ ppr (DFunLamArg i) = char '<' <> int i <> char '>'
\end{code}
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projects / ghc-hetmet.git / blobdiff